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Wetland's ability to absorb water also assists groundwater recharge, which is very important for human water use, as usable freshwater sources are dwindling. Wetlands are not only freshwater habitats and systems, as there are salt marshes and bogs that support different species. [7]
The life forms of a wetland system includes its plants and animals and microbes (bacteria, fungi). The most important factor is the wetland's duration of flooding. [1] Other important factors include fertility and salinity of the water or soils.
A wetland (aerial view) Wetland conservation is aimed at protecting and preserving areas of land including marshes, swamps, bogs, and fens that are covered by water seasonally or permanently due to a variety of threats from both natural and anthropogenic hazards. Some examples of these hazards include habitat loss, pollution, and invasive species.
A wetland is a land area that is saturated with water, either permanently or seasonally, such that it takes on the characteristics of a distinct ecosystem. The primary factor that distinguishes wetlands from other land forms or water bodies is the characteristic vegetation of aquatic plants , adapted to the unique hydric soil .
The SWS vision is to ensure that wetlands are understood, their importance recognized, and sound wetland science is used as a guide for wetland professionals and the general public to collaborate on research, conservation, preservation, restoration, and management of wetlands in our changing environment.
Wetlands can be part of the lentic system, as they form naturally along most lake shores, the width of the wetland and littoral zone being dependent upon the slope of the shoreline and the amount of natural change in water levels, within and among years. Often dead trees accumulate in this zone, either from windfalls on the shore or logs ...
The National Wetlands Research Center (NWRC) was founded in 1975 as part of the U.S. Fish and Wildlife Service's (USFWS) Office of Biological Services. Its headquarters are located in Lafayette, Louisiana. The NWRC is one of 16 science centers of the Biological Resources Division of the U.S. Geological Survey. The mission of the National ...
The degree of salinity in an estuary or delta is an important control upon the type of wetland (fresh, intermediate, or brackish), and the associated animal species. Dams built upstream may reduce spring flooding, and reduce sediment accretion, and may therefore lead to saltwater intrusion in coastal wetlands. [20]